Embroidering attachment for sewing-machines



H. P. SGHLUETER. Embroider ingAttachment for Sewing-Machine.

No. 226,206. Patented April 6, 1880.

Witnesses N.PEI'ERS FHOTO-LITHOGRAFHER, WASHINGTON, n. C.

ihvirnn TATES HENRY r. SOHLUETER, or CINCINNATI, OHIO.

EMBROIDERENG ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 226,206, dated April 6,1880.

Application filed December 29, 1879. i

To all whom it may concern Be it known that I, HENRY F. SOHLUETER, ofCincinnati, in the county of Hamilton and State of Ohio, have invented anew and Improved Embroiderin g Attachment for Sewing- Machines; and I dohereby declare the following to be a full, clear. concise, and exactdescription of the same, sufficient to enable those skilled in the artto which my invention belongs to make and use it, reference being had tothe accompanying drawings, forming a part of this specification,wherein- 4 Figure l is a perspective view of the attachment. Fig. 2 is aside elevation of the same. Fig. 3 is a top-plan view; Fig. 4, a planview with the top plate removed. Fig. 5 is a diagram showing theformation of a coil in the embroidery-thread when the needle of thesewing-machine has completed its descent. Fig. 6 is a diagram showingthe operation of forming the loops in the embroidery-thread when theneedle is raised; and Fig. 7 is a plan view of the embroidery-thread aslaid and stitched to the cloth.

Similar lettersof reference in the several figures of the drawingsdenote the same parts.

My invention has for its object to provide an improved embroiderin gattachment for sewing-machines which shall lay the thread or braid insuccessive coils or loops, so that the machine shall stitch each coil tothe cloth. To this end the invention consists in the construction of theattachment, as hereinafter more particularly described.

In the accompanying drawings, A A represent two horizontal sector-shapedplates, secured together, with a geared sector, B, pivoted between themto vibrate freely. Each plate has an annular front extension, 0, and theforward edge of the lower plate and its extension, as well as the rearedge behind the pivot D, are formed with upturned projecting flanges E,to support the upper plate and its extension and form a narrow spacebetween the two plates for the movements of the geared sector.

The top plate carries an upright sleeve, E, having a set-screw, by whichthe attachment is fastened to the presser-bar of a sewingmachine afterthe foot thereof has been removed, and the under side of thebottom-plate extension is shaped to form a presser-foot on theattachment.

F is an annular pinion, placed within the lower extension, (3, to engagethe gear-sector, and provided with a thread-looping hook, Gr, upon itsupper surface. This pinion is mounted upon a short tubular hub, H,around the central opening of the extension, and prevented from slippingoff the hub by the top plate, A, the opening in the extension of thisplate being large enough toexpose a portion of the pinion, so that thelooping'hook shall rotate within such opening when the pinion is turnedby the gear-sector.

The front side of the hub projects above the pinions slightly to form aguide, I, by which the looping-hook is enabled to make the loop in thethread.

The hook maybe fastened directly to the pinion or to an overhangingflange, J, thereon, either method being practicable.

The attachment is applied to the presser-bar of a sewing-machine, sothat the needle shall pass through the center of the hub G, and thegeared sector is operated from the needle-bar by means of a bell-crankor angular lever, K, pivoted at its angle to an upright, L, at the rearof the attachment, with its long arm fitting over a pin or screw in theside of the needle-bar, and its short lower arm, M, forked to receive alaterally-projecting arm, N, on the sector. The forked end M of thelever has a certain play on the arm N, and serves as a take-up for theembroidery-thread.

The operation of the attachment thus constructed and applied to thesewing-machine is as follows: The embroidery thread or braid is mountedupon a suitable holder and tension device connected with the attachmenton the sewing-machine. The end of the thread is first passed through'aguide-eye, O, 011 the plate A, at the right of the looping-hook; thencethrough one of a series of holes, P, in the forked arm of theoperating-lever, to a guideeye, Q, on the attachment, at the left of thelooping-hook, and finally down through the hub G onto the cloth on thetable of the sewing-machine, where it is held by the presserfoot of theattachment until stitched to the cloth.

In the operation of the machine, when the needle is down to its farthestextent in the cloth and the first loop is formed in the embroiderythread or braid, as shown in Fig. 5 of the drawings, the looping-hookoccupies a position in rear of the thread, which is stretched by thetake-up arm M. When the needle rises the take-up slackens the thread,and the sector and pinion rotate the looping-hook forward to catch thethread in its path and carry it round to the opposite side of theneedle, as shown in Fig. 6. In this movement the guide I, by deflectingthe thread, enables the hook to form the loop and keep it clear of theneedle, while the unlooped portion S of the thread is stretched acrossthe extension 0, between the looping hook and guide-eye, as shown inFig. 6, when the looping-hook has been carried round in contact with aspring, T, secured to the attachment.

The spring is employed to keep the loop from slipping 011' the hookuntil it starts to recede, and its elasticity enables it to yieldslightly to prevent injury to the point of the hook. Just before thelooping-hook reaches the spring the needle has cleared the cloth, andthe latter is fed forward by the sewingmachine, so that thesewing-thread shall be on one side of the part S of theembroidery-thread and the needle on the other side, for the purpose ofmaking" a stitch over the embroiderythread when the needle againdescends.

The hook remains stationary until the needle descends and touches thecloth, there being sufficient play in the. fork of the take-up arm forthis purpose; but when the take up arm comes in contact with the arm ofthe sector the latter starts the pinion in motion and causes thelooping-hook to recede, when the loop slips off the hook and alsoescapes from the guide I. 'As the needle continues to descend the arm Mtakes up the slack in the thread and draws the loop down around theneedle, at the same time stitching the loop previously formed to thecloth.

By these repeated operations the embroidery thread or braid is laid insuccessive coils and the coils stitched to the cloth, as shown in Fig.7.

Themovements of the looping-hook are positive, because the pinion isrotated in both directions by the geared sector, and therefore the useofa spring for throwing the hook in one direction is avoided, as well asthe use of guiding-cords and pulleys.

Having thus described my invention, what I claim is-- 1. The embroideryattachment for sewingmachines, consisting of the plates A A, theextensions 0 thereof, the pinion F within the extensions, having thelooping-hook Gr thereon, the geared sector B between the plates, theangular lever K for operating the sector, the thread-guide I, and thespring T, substair tially as described, for the purpose specified.

2. The spring T, combined with the attachment-plate A, the looping-hook,and mechanism for operating said hook, substantially as described, forthe purpose specified.

In testimony of which invention I have hereunto set my hand this 19thday of December, A. D. 187 9.

H. F. SGHLUETER.

Vitnesses:

BENJ. H. 00X, N. K. ELLSWORTH.

